what is the effect of the "sentry" button?

[woodandearth]

I have played c3c for two years, still not knowing the use of the "sentry" button for units.

 

[Arexander]

Sentry-button makes your selected unit go to a "sleepmode" where you don't need to select it every turn. Then, if an unit (friend or enemy) comes near your unit, it will "wake up" and you select it automatically on that turn.

Sentry (enemy only) -button is the same as the Sentry-button but your unit wakes up only when there is an enemy unit nearby.

 

[muscularmatt]

I rarely fortify units. I'll fortify one in each city, and then all the others in cities or on the map I'll use the sentry

 

[darski]

I really like sentry. It lets you leave an old conscript warrior in a 'dead but needs watching' area and you get notified if someone tries something stupid.